CHEMICAL REACTION ENGINEERING QUIZ

Chemical kinetics can predict the __________ of a chemical reaction.

Rate

Neither A nor B

Both A & B

Feasibility

TRUE ANSWER : ?
YOUR ANSWER : ?

When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.

Can be either greater or smaller than (depends on the type of reaction)

Is greater than

Equals

Is smaller than

TRUE ANSWER : ?
YOUR ANSWER : ?

The heat of reaction

Is independent of the mechanism of reaction

Depends on both pressure and mechanism of reaction

Depends on the mechanism of reaction only

Depends on the pressure only

TRUE ANSWER : ?
YOUR ANSWER : ?

A photochemical reaction is

Initiated by light

Catalysed by light

All of these

Accompanied with emission of light

TRUE ANSWER : ?
YOUR ANSWER : ?

If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst

Internal surface area is utilised efficiently

None of these

Porosity is of less importance

Porosity is very important

TRUE ANSWER : ?
YOUR ANSWER : ?

For a first order chemical reaction, the rate constant

Is not a function of the unit of time

Changes on changing the concentration units

None ofthese

Has unit of time⁻¹

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ explains the mechanism of catalysis.

None of these

Activated complex theory

Thermodynamics

Collision theory

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature?

Chemical reaction

Pore diffusion

Film diffusion

Ash layer diffusion

TRUE ANSWER : ?
YOUR ANSWER : ?

A catalyst in a chemical reaction

Increases the frequency of collisions of reacting species

Alters the reaction mechanism

Decreases the activation energy

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants)

A+N

A-N

N

A

TRUE ANSWER : ?
YOUR ANSWER : ?